# API Contract / Evolution

> "api-contract" (contracts-core layer) is traded against "Evolution" (contracts-core layer) — a principle cannot be scope-separated from a quality, metric, or cost it competes with; resolve by measuring "Evolution" and choosing an explicit operating point.

Record: `tension:api-contract-evolution`
Kind: tension
Canonical: https://banes-lab.com/ontology/schema#tension-api-contract-evolution

## tensions-with

- [API Contract](https://banes-lab.com/records/arch/api-contract.md)
- [Evolution](https://banes-lab.com/records/lex/evolution.md)